Eurotherm ER-340XRi/ER-680XRi/ER-1220XRi DC Drive Owner's manual

Brand: Eurotherm

Model: ER-340XRi/ER-680XRi/ER-1220XRi DC Drive

Type: Owner's manual

This manual is also suitable for

ER-340XRi/ER-680XRi/ER-1220

Eurotherm ER-340XRi/ER-680XRi/ER-1220XRi DC Drive is a powerful and versatile device designed for a wide range of applications. With its isolated 4 Quadrant speed controller, it can be used with shunt wound or permanent magnet motors, providing accurate speed and current control. The drive offers both speed and current control modes, making it suitable for various applications.

Key features of the Eurotherm ER-340XRi/ER-680XRi/ER-1220XRi DC Drive include:

Isolated 4 Quadrant speed controller for shunt wound or permanent magnet motors
Accurate current control loop to protect the drive and motor

Key features of the Eurotherm ER-340XRi/ER-680XRi/ER-1220XRi DC Drive include:

Isolated 4 Quadrant speed controller for shunt wound or permanent magnet motors
Accurate current control loop to protect the drive and motor

Model ER-340XRi / ER-680XRi / ER-1220XRi DC drive product manual HG102909 iss 9 1

This drive is an isolated 4 Quadrant speed controller for shunt wound or permanent magnet motors. It utilises

speed feedback from the armature voltage (Avf), or from a shaft mounted tachogenerator. It incorporates an

accurate current control loop to protect the drive and motor, and can be used in speed or current control modes.

The drive can operate in forward or reverse, motoring or regenerative braking.

Please obtain expert help if you are not qualified to install this equipment. Make safety a priority. This

component is hazardous.

(All specifications in this document are nominal).

ER-340XRi 0.55KW (0.5 HP) at 180 Volts DC, 3.4 Amps

ER-680XRi 0.75KW (1.0 HP) at 180 Volts DC, 6.8 Amps

ER-1220XRi 1.80KW (2.0 HP) at 180 Volts DC, 12.2 Amps

Versions that work from 60V / 30V AC supply are also available.

ER-340XRi/LV60, ER-680XRi/LV60, ER-1220XRi/LV60. For motors rated up to 48V DC

Armature: +/-200 Volts DC, or +/-50V for LV60 models.

Models ER-340XRi / ER-680XRi /ER-1220XRi - 3.4/ 6.8/ 12.2 Amps.

Field: Volts DC= 0.9 x AC supply volts. 1 Amp

(0.45 x AC for field connected to F- and N). 1 Amp.

110V AC or 240V AC +/-10%, 50–60 Hz.

30V AC or 60V AC +/-10%, 50-60Hz for LV60 models.

Speed range 0–100%. (motor dependant)

Load Regulation typically 0.2% tach, 2% Arm Volts.

Presets accessible under lift up cover.

Clockwise rotation for linear increase in parameter.

Relay driver threshold (Level) +/-(0.5% to 105%). (+/-10.5V) Symmetrical about zero.

Maximum Speed (Max spd) 40V-200V span with Spd x 2 switch. (Avf/Tach fb volts)

LV60 models have an Avf range 10 - 50V.

Minimum Speed (Min spd) 0 to 30% of maximum speed. (With 10K external pot).

Up Ramp (Ramp ) 20 to 1 seconds up ramp rate. (For 0 to +10V)

Down Ramp (Ramp ) 20 to 1 seconds down ramp rate (For +10 to 0V)

Stability (Stab) Gain 1 to 10

Maximum Current (I max) 0 to 100% current limit.

IR compensation (IR comp) 0 to 25%

Speed setpoint from external 10K Ohms pot.

External RUN contact for electronic STOP/START.

Built in functions are+/- channel with pushbutton control inputs, and relay driver with variable

threshold. There is a pot kit available with graduated dial and knob. Eurotherm part ref. POTKIT.

Speed loop: Full P+I armature voltage feedback.

Current loop: Full P+I isolated current feedback.

Use correctly rated cable minimum 600V AC, 1.5 times armature

current.

POWER RATING

MAXIMUM OUTPUT

AC SUPPLY INPUT

SPEED RANGE

USER ADJUSTMENTS

EXTERNAL CONTROLS

CONTROL ACTION

INSTALLATION

2 Model ER-340XRi / ER-680XRi / ER-1220XRi DC drive product manual

Eurotherm semi-conductor fuse parts.

20A fuse 6 X 32 CH00620A

Fuseholder 6 X 32 CP102071

DIN rail clip for fuseholder FE101969

Suitable for use on a circuit capable of delivering not more than 5000A RMS symmetrical amperes when protected by an Ar class fuse.

WARNING The drive can only be protected by fitting an external

AC supply semi-conductor fuse with an I

t rating below 150 A

Control signals are isolated from the supply, and the unit may be

connected to other isolated instruments.

The unit is designed to clip onto a DIN rail. Avoid vibration and

ambient temperatures outside –10 and +40C. Protect the unit from pollutants. Ensure there is an

adequate supply of clean cool air to ventilate the unit and the enclosure it is mounted in. (Dissipation

in Watts = 5 x Armature Amps).

Foot mounted motors must be level and secure. Protect motors

from ingress of foreign matter during

installation. Ensure accurate alignment of motor shaft with couplings. Do not hammer pulleys or

couplings onto the motor shaft.

Before running motor, complete the following check list. (Warning isolate the supply first).

1) Correct insulation between all motor windings and earth. Disconnect all drive cables.

2) Check inside connection box for foreign objects, damaged terminals etc.

3) Check that brushes are in good condition, correctly seated and free to move in brush

boxes. Check correct action of brush springs.

4) Motor vents must be freed of any obstruction or protective covers prior to running.

To avoid damage, ensure the supply selection jumper on the

drive matches the incoming supply. 110V or 240V AC.

For models with LV60 suffix. 30V or 60V AC.

Set the I max (Max Current) preset to approximately match the

motor armature rating. Fully clockwise is 100% drive

rating. (ER-340XRi 3.4A, ER-680XRi 6.8A, ER-1220XRi 12.2A). Fully anticlockwise is 0%. E. g. for a ER-

340XRi unit a midway setting is 50% i.e. 1.7A. More accurate setting requires a suitable current meter

in series with the armature. Set the Stab preset midway. (Clockwise rotation of the stab preset

increases gain, excessive rotation may lead to instability). Set all the other presets anticlockwise to

start off with. (Note LV60 models avf range is 25%).

The preferred strategy for initial commissioning is in armature voltage feedback mode described as

follows. Set Avf/Tach switch ON (left) for armature voltage feedback (Avf) and Spd x 2 switch OFF

(right) for 40V max feedback. For systems utilising tach feedback, remove the terminal 11 tacho

connection and temporarily make wire end safe until later.

Check that the Power lamp lights. (Note, the Power lamp

intensity is reduced when the negative armature bridge is

demanded). Increase the external speed pot slowly to

maximum. The motor should slowly ramp up to around 40V on the motor armature. Now set the 100%

armature voltage and hence speed by using the Spd x 2 switch (ON (left) for speed X 2) and the Max

spd preset (Clockwise to increase speed). Note, if you change the Spd x 2 switch position whilst

running, the speed will undergo an immediate step change.

FUSING REQUIREMENT

CONTROL SIGNALS

MECHANICAL

MOTOR

AC SUPPLY

PRESET POT settings

POWER ON

Model ER-340XRi / ER-680XRi / ER-1220XRi DC drive product manual HG102909 iss 9 3

IR COMP

TACH FEEDBAC

The up / down ramps can now be set between 20 and 1 seconds,

and the Min spd adjusted up to 30%.

(Note, down ramp becomes up ramp for reverse rotation).

Speed droop on heavy loads may occur when armature voltage

feedback is used. This is compensated for by

clockwise rotation of IR comp. Excessive rotation may lead to instability.

Note, IR comp is not used with tach feedback, leave preset anticlockwise.

The tacho feedback signal on terminal 11 must be negative with

respect to terminal 10 for a positive speed input.

Whilst still in Avf mode measure the tach volts on the wire intended for T11 when running at 100%

speed. (Warning, possible high voltage). This is the tach full speed voltage. Make a note of it to assist

in selecting the speed range. Stop the motor and turn off the supply.

Set Avf/Tach switch OFF (right). Adjust the Max spd preset anti-clockwise. (With Spd x 2 switch OFF

(right) maximum speed range = 40 to 100V. With Spd x 2 switch ON (left) the maximum speed range =

80 to 200V). Re-connect the tach wire to T11, re-start and adjust Max spd as required. Do not use an

AC rectified tacho for bi-directional systems.

WARNING. A+, A-, F-, F+, N, L, are at high potential.

DO NOT TOUCH the terminals or any connected conductor

1 +10V output. 10mA max. (Use a 10K Ohm pot for external speed reference).

2 MIN Speed. 5K Ohms preset to COM. (Connect to minimum end of speed pot).

3 IP. Speed input to ramp. 0 to +/-10V from speed pot wiper. 47K pull down.

4 OP+/-. (+/-10.5V range). 10mA max. T6 is the input for this function. Invert with

pushbutton input T8 open. Non-invert with pushbutton input T7 open. (This function may be

used to provide pushbutton controlled +/- 10V ref for fwd/rev).

5 COM. Common. (0 Volts)

6 IP+/-. Input to pushbutton controlled +/- signal channel. OP on T4. 50K Ohms.

Note. This channel can invert input signals in the range +/-10.5V. It can also buffer (i.e.

non-invert) signals in the range 0V to +10.5V. (It cannot buffer negative signals. If you try

to buffer negative signals the output swings positive).

7 PB+ Pushbutton input. 47K Ohm pull up to +12V. Connect to T5 COM. Latches T4 to buffer

(non-invert) positive T6 signals when opened, provided T8 PB- is connected to T5 COM.

8 PB- Pushbutton input. 47K Ohm pull up to +12V. Connect to T5 COM. Latches T4 to invert

T6 when opened. T7 PB+ may be open or connected to T5 COM.

9 RUN. Internal 12K pull up to +12V. Open to stop, close to T5 COM to run. WARNING. RUN is

an electronic inhibit function. The field remains energised, and all power terminals

‘live’. RUN must not be relied on to prevent rotation during hazardous operations.

See section on STOPPING & JOGGING below.

10 COM. Common. (0 Volts)

11 TACH input. The tach must be opposite polarity to speed input. 1.5 MOhms.

12 RLOP. Relay driver. +10V active high at 10mA. Flywheel diode to COM.

13 RLIP. Relay driver input. Accepts 0 to +/-10.5V signal inputs. The threshold to activate the

relay driver is symmetrical around zero, and set by the Level preset between +/-0.05V and

+/-10.5V. When the T13 input exceeds the positive or negative threshold, then the T12

RLOP is turned ON. Typical uses include zero speed detector, zero current detector, stall

detector etc. The input will accept any output from other control terminals. 50K Ohm pull

down to COM.

14 OVLD. Overload. +10V active high at 10mA if the current demand exceeds 100%. Latches

high if the stall timer eventually times out.

15 TRIP. Latched +10V active high at 10mA for either stall OR fan alarm tripped.

RAMP and MIN SPEED

TERMINAL LISTING

4 Model ER-340XRi / ER-680XRi / ER-1220XRi DC drive product manual

STOPPING & JOGGING

16 ROP. Ramp output. 0 to +/-10V output for 0 to +/-10V input. 1K Ohm output.

17 DEM. Demand output. 0 to -/+10V output for 0 to +/-100% speed demand. 1K Ohm output

impedance. Represents the inverted total speed demand.

18 SOP. Speed output. 0 to +/-10V for 0 to +/-100%. 1K Ohm output impedance.

19 IOP. Current output. 0 to +/-5V output for 0 to +/-100% armature current. Maximum output

+/-7.5V for +/-150% current. 1K Ohm output impedance.

20 SPD. Direct speed input fast response. Input impedance 100K. This signal is summed with

the ramped reference. 0 to +/-10V input for 0 to +/-100%.

21 TRQ. Torque input. 100K Ohms pull up to +12V. 0 to +7.5V for 0 to +/-150% current (torque)

demand. This input acts as an upper clamp on the current demand output produced by the

speed loop. The current demand polarity determines the sign of the current. This input

controls torque by clamping the demand amplitude. To operate, the total input speed

demand must require current higher than this clamp level will allow. Conversely, if the

speed loop current demand falls below this clamp level, the speed loop will regain control.

A+ Motor armature + Form Factor typically 1.5

A- Motor armature -

F- Motor Field – (No connection required for permanent magnet motors).

F+ Motor Field +(For half wave field volts 0.45 X AC, connect field to F- and N).

N AC supply. 110V AC or 240V AC +/-10%, 50–60 Hz. (30/60VAC for type LV60)

L AC supply. 110V AC or 240V AC +/-10%, 50–60 Hz. (30/60VAC for type LV60)

Terminal tightening torques A+ A- F- F+ N L 4.4in lb - 0.50Nm

Terminals 1 to 21 2.2in lb - 0.25Nm

Models ER-680XRi and ER-1220XRi use an internal fan for cooling.

The Alarm lamp will come ON and the drive will electronically

shut down if the internal fan fails. The field

will remain energised, hence if the machine is to be left unattended for long periods it may cause the

field to overheat. (T15 TRIP alarm output available).

All models possess a STALL TIMER. This starts to integrate when the current demand exceeds 100%. A

continuous demand of 150% will take 30 seconds to saturate the timer integrator, and latch the drive

into shut down. Overload profiles at lower levels will take longer to trip. A STALL TRIP is indicated

when the Stall lamp is latched on and the drive is shut down by the alarm. The LAMP gets progressively

brighter as the stall integrator fills up prior to tripping. (T15 TRIP alarm output available and T14

OVLD also latches high).

For frequent stopping or jogging it is recommended to use the RUN

input. When using a mains contactor, connect a spare

Normally Open contact from the contactor in series with the RUN input. Do not simply remove the

supply to stop the motor, especially if the system is regenerating. This may cause fuse blowing, and

possibly damage if the regenerative energy cannot be dissipated due to supply removal. If the drive is

running, open the RUN (T9) input at least 250mS before removing the supply to allow time for the

current to be quenched by the drive.

ALARMS

Model ER-340XRi / ER-680XRi / ER-1220XRi DC drive product manual HG102909 iss 9 5

APPLICATIONS GUIDE

WARNINGS

The product is enclosed in a stylish DIN rail mounted enclosure

with plug in screw terminal connections.

Height Width Depth

ER-340XRi

105 60 120

ER-680XRi

105 70 120

ER-1220XRi

105 70 120

For Forward / Reverse operation

Move the wire from T1 into T4.

Connect T1 to T6. The pushbutton

inputs T7/8 can then be used for

direction control.

Earthing A clean signal earth connection should be made to terminal 10 (Common). The motor

earth should be connected to the earth in the system enclosure.

If the unit is to be used in the domestic environment, then for installations in the EU a supply filter is

recommended in order to comply with EN6800-3. Eurotherm part number FRLN16. For EU EMC

compliance guidelines refer to the above website.

Health and safety at work. Electrical devices constitute a

safety hazard. It is the responsibility of

the user to ensure compliance with any acts or bylaws in force. Only skilled persons should install

this equipment. Eurotherm Ltd. does not accept any liability whatsoever for the installation,

fitness for purpose or application of its products. It is the users responsibility to ensure the unit is

correctly used and installed.

MECHANICAL DETAILS

Supply

Select

Sw1 AVF

Sw2 Spd x 2

Max Speed

Min Speed

Up Ramp

Stability

Max Current

Comparator

Level preset

Lift up cove

Terminals

12 to 21

A+ A- F- F+ N L

Fan exhaust

For models

ER-680 / ER-

1220XRi

DIN rail

release catch

with bottom

rear access

slot. (Unplug

terminals to

gain access)

http://www.eurotherm.com

IR Comp

Alarm lamp

Stall lamp

Increasing brightness for

imminent trip.

Power ON lamp

Brighter for positive current.

Down Ramp

Terminals

1 to 11

Armature

Field

Basic single direction speed control with tach feedbac

1 2 3 5 9 10 11 A+ A- F- F+

10K Pot

RUN

Tach

Earth

Eurotherm ER-340XRi/ER-680XRi/ER-1220XRi DC Drive Owner's manual

Brand: Eurotherm

Model: ER-340XRi/ER-680XRi/ER-1220XRi DC Drive

Type: Owner's manual

This manual is also suitable for

ER-340XRi/ER-680XRi/ER-1220

Key features of the Eurotherm ER-340XRi/ER-680XRi/ER-1220XRi DC Drive include:

Isolated 4 Quadrant speed controller for shunt wound or permanent magnet motors
Accurate current control loop to protect the drive and motor

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Eurotherm ER-340XRi/ER-680XRi/ER-1220XRi DC Drive Owner's manual

This manual is also suitable for

Eurotherm ER-340XRi/ER-680XRi/ER-1220XRi DC Drive Owner's manual

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